Jun 11, 2021
Not quite true. Your source is from 2013 - a lot has changed since then.
https://www.apple.com/newsroom/2019/08/improving-siris-privacy-protections/
And, when IOS 15 comes out this fall, even less true.
https://www.vox.com/recode/2021/6/7/22522994/apple-ios15-privacy-icloud